Hi, I have a 1950 ZM20 with a YM20 front frame loop fitted this has been there for last 30yrs but now would like to fit right one for year.If anyone out there has one to sell would be interested!!.Dont need V5C or paperwork just bare frame, even a BM20/21 would do but would have to modify headstock lock. P.S I,m uk based. cheers Dave